Seorim Construction Co. Ltd.South Korea
Dongguan Zhongming Precision Hardware Electronic Technology Co., Ltd.Guangdong Sheng, China
China Railway 16th Bureau Group Metro Engineering Co., Ltd.
Shanghai Qianchong Trading Co., Ltd.Shanghai Shi, China
Shanghai Hongli Purification Technology Co., Ltd.Shanghai Shi, China
Fujian Quanhui Messer Gas Co., Ltd.Fujian Sheng, China
Liaoning Cast Metal Material Development Co., Ltd.Liaoning Sheng, China
Keyosk Corp.Hawaii, United States
Tianjin Fuen New Energy Technology Co., Ltd.Tianjin Shi, China
Shanghai Tianchen Modern Environmental Technology Co., Ltd.Shanghai Shi, China
Zhejiang Tiandi Environmental Protection Technology Co., Ltd.
Sidley Luobao Energy Saving Materials Technology Co., Ltd.Hebei Sheng, China